133402246 has 8 divisors (see below), whose sum is σ = 200661840. Its totient is φ = 66514968.

The previous prime is 133402229. The next prime is 133402253. The reversal of 133402246 is 642204331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 133402246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92181 + ... + 93616.

It is an arithmetic number, because the mean of its divisors is an integer number (25082730).

Almost surely, 2^133402246 is an apocalyptic number.

133402246 is a deficient number, since it is larger than the sum of its proper divisors (67259594).

133402246 is a wasteful number, since it uses less digits than its factorization.

133402246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186158.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 133402246 is about 11549.9890043238. The cubic root of 133402246 is about 510.9609538143.

Adding to 133402246 its reverse (642204331), we get a palindrome (775606577).

The spelling of 133402246 in words is "one hundred thirty-three million, four hundred two thousand, two hundred forty-six".